Operating mechanism for car-doors.



J. F; McELROY-\ OPERATING MECHANISM FQR'CAR noo'ns.

' APPLICATION FILED MAR. Ill 1913-.

' Patented Apr. 3,1917.

4 SHEETS-SHEET I.

' WITNESSES: INVENTOR BY (51% ATTY 1. F. MCELROY; OPERATING MECHANISM FOR CAR DOORS.

' APPLICATION FILED MAR. 11, 1913 Patented Apr. 3, 1917.

4 SHEETS-SHEET 2.

'INVENTOR J. F. McELROY. OPERATING MECHANISM FOR CAR DOORS.

APPLlCATlON FlLEb MAR, H. 1913- Patented Apr. 3, 1917.

4 SHE ETS-SHEET 3- INVENTOR ATTY Y J. F. McELROY.

OPERATING M HAN 3 APPLICATI M FOR CAR DOORS.

ON FILED MAR. 1

Patented A p1 4 S HE T SS H WITNESSES;

I NVENTOR JAMES E. McELROY, or ALBANY,

HEATING COMPANY,

NEW YORK, ASSIG-NOR' 'IO CONSOLIDATED CAR- A CORPORATION OF WEST VIRGINIA.

orEnATING MECHANISM FoR'cAR-noons.

Patented Apr. a, 191W. Application filed March 11, 1913. Ser1'a1No. 753,63 G.

1,221,2(12. Specification of Letters Patent.

wing section A a roller a which travels between straight horizontal guide strips at a citizen of the United States, residing at which lie just above, the line of the door Albany, county of Albany, State of New when it is closed. York, have invented certain new'and useful tl Improvements in Operating Mechanism for Car-Doors, the following being a full, clear, and exact disclosure of the one form of my invention which I at present deem preferable. I

For a detailed description of the present form of my invention, reference maybe had to the following specification and to the accompanying drawing, which illustrates my To all wiwm it may concern:

Be it knownthat I, JAMES F. MoELRoY,

an a straight line toward of the main sectionuiitil they meet. In Fig. 2 the closed position""'ofl-door A is shown in full lines, its open position in dotted lines; whereas for door B, B the full lines show "the open and the dotted lines the closed position of that door. To the middle point of wing section A near its upper edge invention, wherein is jointed one. end of a light bar A ,the Figure 1 is a general view of my appa-- opposite-end of which is hinged to one end ratus; of a shorter bar A which has its other end Fig. 2 is a plan thereof; hinged to the door frame and forms a shift- Fig. 3 shows the vertical shaft and -1ng fulcrum for the bar A. When the door handles; is closed, these bars A A stand at an angle Figs. 4 and 5 show details- I to the door and to each other, as shown in y invention relates to the operation'of Fig. 2. To the center of bar A is hinged doors, particularly'car doors. Itis shown as applied to a door formed in sections hinged to each other and one section hinged 3 means of an 'j'oflset A so as to'b'ring the to the door frame.- The outer or wing-sec- 'join'tbetWee-n A and A back of the vertion is provided. with a, roller at'its outer tica-l shaft A when the door is closed, as corner which travels in a straightguideex, appears .in said Fig. 2. 'This arrangement tending along theline occupied-by the-"door serves "tolock the doors by throwing the when it is closed; I have devised a simple crank A to or slightly beyond dead center when the" connecting rod A comes against theside ofthe vertical shaft. It similarly the connecting rod A which is jointed at v lts opposite end to the system of levers for operating such a door from'a point or station WhICh 1s more "or the outer edge of the wing section moving the hinged edge crank arm A by v less distant from the door. thus avoid}; locks}. the doors in their open position the use of gear wheels and bearings therefor. I en" door A is closed, as in Fig. 2, a clock- 35 Turning to'the accompanying drawingsyf wisegrotation of shaft A b handle A A, A represent the twosections of"al car door and B, B nrepresent the. correspondy ing sections of a second door-beside the'first' one and separated therefrom by the post G. Both of these doors are to be operated fromthe same point on' the car platform. adjacent to the rail E, by means of the resp'ective handles A and 13 As appears in Fig. 3, the handle'A serves to rotate a vertical shaft A mounted'on rail E and the handle B "WlllCfiAISQ the rod'A to push against the bar A 'thereby breaking the toggle joint between the two door sections, pushing the section A at the same 40 toward the door frame and causing its outer guldes. ga to. move toward the inner or .hlnged edge'.of' -section A until both sections are folded together and project out ward at right angles to their closed position,

1 as is 'shown'by' thedotted lines at the right. rounds A Braces F and F serve to stay 'Iheright' hand 'end' of bar A follows an the upper ends ofthe said shafts and the arc-traced by the outer end of bar A act? two handles may be locked,if desired, by xin'g as a radius and finally comes into a poa pin E that is dropped loosely in a socket sition parallel to the folded and opened on the rail E. frjdoorsas shown by the dotted lines in the Theoperating devices for one doora're figure Toclose the door a reverse moveduplicated for the other and hence I will mentis given to handle A causing the rod only describe those for door A A This A to draw inward on the'ba-r A and since 55 door has on the upper outer cornerof its that bar is jointed to the wing section of a tubular shaft B which sur' time bodily inward edge, which is controlled by the.roller a in i as is the common that section directly binding effect until What Iv claim as new and desire tolsecure -by Letters Patent is:

pull device, a link connecting j porting section and a 15 1. An operating mchanisln i for sectional doors, comprising aidoor formed of a sup-.

a section hinged together, a. rectilinear gui e} for the wing section, an'actuating lever having one end pivoted to said wing section, afulcrum lever permanently';pivoted at one end and having its free end pivotally attached to the 'free end of the actuating'lever, and a push and pull device connected with'said actuating lever, at a point between its ends.

2. An operating mechanism for sectional doors, comprising a door-formed of a supporting sectlon and 'awing section hinged together, a rectilinear guide for the wing section thereof, an actuating lever having one end pivoted to said wing section, a fulcrum lever permanently pivoted at one end and having its freeiend pivotally attached to the free end of the actuating lever, a push and the push and pull device with said actuating'levenan means for operatingvice 3. An operating mechanism for sectional doors, comprising a doorformedof a supporting section and a wing section hinged together, a rectilinear the push and pull deby section A comes.

porting section 1 -my hand, hefore two guide for the wing section thereof, an actuating lever having one end pivoted to said wing section, a fu .crum lever permanently pivoted at one end and having its free end pivotally attached to r the free end of the actuating lever, and a push and pull device directly connected with said operating lever between its ends.

4. An operating mechanism for sectional doors, comprising a door formed of a supand a wing section hinged together, a rectilinear guide for the wing section thereof, a guiding lever having one end pivoted to said ring section, a fulcrum lever permanently pivoted at one end and having its free end pivotally attached to the free end of the actuating lever, a push and pull device provided with a crank arm, and a link connecting said crank arm directly with said operating lever. 5. An operating mechanism for sectional doors comprising a guide for the wing section thereof, a guiding lever having one end pivoted to said wing section, a fulcrum lever permanently pivoted at one end and having its free end pivotally' attached to the free end of the actuating lever, a ush and pull device provided wlth a cran armya link connecting said crank arm and said operating lever, and means whereby the crank arm may be moved to a dead center when the link'is in a predetermined position.

In witness whereof I have hereunto set subscribing witnesses, this 7 My of March, 1913.

JAMES F. McELROY Witnesses:

HERBERT A. CAULKINB, Joan M. Es'rnnnr. 

